Table 3 Comparison of scores of NI competency and its dimensions between the intervention and control groups at pretest and posttest

Informatics competency total

Intervention

Control

Statistic t^b &

p

Effect size (Cohen d)

78.79 ± 26.52

82.69 ± 19.29

t = − 0.45

p = 0.65

0.14

114.29 ± 20.68

81.76 ± 17.99

t = 6.54

p = 0.001

1.57

35.5

− 0.93

1.33

0.044

t = 7.71

p = 0.001

t = − 1.39

p = 0.25

Computer literacy

Intervention

Control

Statistic t^b &

p

Effect size (Cohen d)

28.46 ± 10.28

28 ± 8.27

t = 0.194

p = 0.85

0.04

39.70 ± 6.78

28.03 ± 8.32

t = 6.05

p = 0.001

1.72

11.24

0.03

1.09

0.05

t = 7.06

p = 0.001

t = 0.37

p = 0.71

Informatics literacy

Intervention

Control

Statistic t^b &

p

Effect size (Cohen d)

33.51 ± 11.45

34.70 ± 8.33

t = − 9.42

p = 0.67

0.10

48.77 ± 9.46

34.43 ± 7.79

t = 6.44

p = 0.001

1.51

15.26

− 0.27

1.33

0.03

t = 6.93

p = 0.001

t = − 1.39

P = 0.30

Informatics management skills

Intervention

Control

Statistic t^b &

p

Effect size (Cohen d)

17.80 ± 6.78

19.88 ± 5.21

t = − 1.27

p = 0.27

0.30

25.80 ± 5.72

19.30 ± 5.40

t = 4.55

p = 0.001

1.13

8.00

− 0.58

1.17

0.11

t = 7.80

p = 0.001

t = 1

p = 0.32